Have you ever carried a lot of keys for the letterbox, School/GYM lockers & etc.? Have you ever experienced carrying stuff with both hands and finding the key difficult? How often you need to get access with the tiny key? The answer is Everyday, Everywhere & Every time.

Without taking off the traditional method to use keys to open those locks, even though you are the existing locks is being NO CHANGE. We decide to develop a DIY module in which can easily install by yourself within 1 mins and to make your locker, letterbox to be opened with your smart phone.

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